C语言头文件 - 别有栋天

<assert.h>	Conditionally compiled macro that compares its argument to zero
<complex.h>(C99)	Complex number arithmetic
<ctype.h>	Functions to determine the type contained in character data
<errno.h>	Macros reporting error conditions
<fenv.h>(C99)	Floating-point environment
<float.h>	Limits of floating-point types
<inttypes.h>(C99)	Format conversion of integer types
<iso646.h>(C95)	Alternative operator spellings
<limits.h>	Ranges of integer types
<locale.h>	Localization utilities
<math.h>	Common mathematics functions
<setjmp.h>	Nonlocal jumps
<signal.h>	Signal handling
<stdalign.h>(since C11)(deprecated in C23)	`alignas` and `alignof` convenience macros
<stdarg.h>	Variable arguments
<stdatomic.h>(C11)	Atomic operations
<stdbit.h>(C23)	Macros to work with the byte and bit representations of types
<stdbool.h>(since C99)(deprecated in C23)	Macros for boolean type
<stdckdint.h>(C23)	Macros for performing checked integer arithmetic
<stddef.h>	Common macro definitions
<stdint.h>(C99)	Fixed-width integer types
<stdio.h>	Input/output
<stdlib.h>	General utilities: memory management, program utilities, string conversions, random numbers, algorithms
<stdmchar.h>(since C29)	Text transcode
<stdnoreturn.h>(since C11)(deprecated in C23)	noreturn convenience macro
<string.h>	String handling
<tgmath.h>(C99)	Type-generic math (macros wrapping <math.h> and <complex.h>)
<threads.h>(C11)	Thread library
<time.h>	Time/date utilities
<uchar.h>(C11)	UTF-16 and UTF-32 character utilities
<wchar.h>(C95)	Extended multibyte and wide character utilities
<wctype.h>(C95)	Functions to determine the type contained in wide character data

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